I like welding because it is much cheaper for me since I have a welder. I actually clamped the exhaust on my DD 4runner because the kit came with the clamps. I suppose its just personal preference.
PZ
Some clamps i like, like the new ford band clamps.
I dont like the look of tradiational crush clamps.
I have some ROL flat band clamps on my exzhaust system just to make seperation and service eaiser. There are two actually everything else is welded.
Apple iPhone keyboard sucks.
Btw, my Harbor freight welder was actually made in Italy not China. Pretty damn decent unit.
edit: remember if you want it done right do it yourself.